Adjustable bracket.



W. S. GRAHAM.

ADJUSTABLE BRACKET.

APPLIOATION FILED SEPT. 5, 1913.

1,089,337. Patented Mar. 3, 191

QM sam/ 5/ UNITED sTATEs PATENT OFFICE.

WALLACE S. GRAHAM, OF LANCASTER, OHIO, ASSIGNOR TO THE LANCASTER GLASSCOMPANY, OF LANCASTER, OHIO, A CORPORATION OF OHIO.

ADJUSTABLE BRACKET.

Specification of Letters Patent.

Patented Mar. 3, 1914;.

To all whom it may concern 7 Be it known that I, WALLACE S. GRAHAM, acitizen of the United States, and a resident of Lancaster, county ofFairfield, and State of Ohio, have invented a new and useful Improvementin Adjustable Brackets, of which the following is a specification, theprinciple of the invention being herein explained and the best mode inwhich I have contemplated applying that principle, so as to distinguishit from other inventions.

The subject of the present application is a new and improved bracket. Itis desirable to construct brackets for certain purposes of glass and ithas been extremely difficult to design such a construction which wouldbe adjustable and would at the same time not be easily broken. Thesefaults are apparently remedied by the present invention which can bereadily adjusted to any angle and which is thoroughly protected frominjury which might be caused by the operation of adjustment.

To the accomplishment of these and related ends said invention thenconsists of the means hereinafter fully described and particularlypointed out in the claims.

The annexed drawing and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of the invention may be used.

Figure 1 is a front elevation of the device; Fig. 2 is a side elevationof the same; Fig. 3 is a central section on the line 33 in Fig. 2 andFig. 4 is a side view of one of the serrated engaging disks.

The general features of the construction are best seen in Fig. 1, therebeing a suitable support 1 having at its upper end a disk 2, the latterbeing provided on one face with a number of radial serrations 3. Thedisk 2 is centrally apertured and receives therein a bolt 4, the bolt 4engagin a second centrally apertured and serrated disk 5 which isattached to a bar or bracket arm 6. A wingnut 7 is provided for thepurpose of loosening or tightening the adjustment of the bolt. It willbe readily evident that the serrated engaging faces on the disk will beliable to be broken at every adjustment unless some means are providedfor cushioning the pressure between these two disks and for taking thestrain oif the small teeth on each face. I I

have accordingly interposed washers or disks 9, of readilycompressiblematerial, between the two engaging faces on the disks 2 and5 and these washers 9 are compressed upon engagement of the two disks,the serrations on each engaging the washers and transmittlng pressure tothe other teeth on the adjacent disk. The serrations on the two disksare, however, never in contact and the device is therefore not liable tobe broken during engagement. Furthermore, between the washer 8 which isplaced about the bolt between the disks and the wing-nut, and theadjacent disk is another washer 10 also of readily compressible materialwhich prevents any injury to the glass disk from the lIOll washer on thewing-nut. Similarly between the head of the bolt and the adjacent diskis another washer 11 of the same material for the same purpose. By soconstructing the bracket it is possible to make the same of fragilematerial such as glass with scarcely any danger of breakage.

\ The functions of the present washer are entirely different from thefunctions performed by articles usually meant by this work; The presentwashers may be formed of fiber, paper, card board or the like and beingthin and readily compressible are capable of transmitting the pressureof the serrations or teeth on each disk to the other. The use of thistype of washers has made it possible to construct brackets of the typeshown of glass which has been greatly desired for certain uses. A

Other modes of applying the principle of my invention may be employedinstead of the one explained, change being made as regards the mechanismherein disclosed, provided the means stated by any of the followingclaims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as myinvention 1. In a bracket, the combination of a support, a disk offragile material attached to said support and having one face roughened,an arm, a second disk also of fragile material attached to said arm andhaving one roughened face, a disk of readily compressible materialinterposed between such serrated faces of said first-named disks, andmeans adapted to detachably clamp said two first-named disks inengagement.

2. In a bracket, the combination of a support, a disk of fragilematerial attached to said support and havin one serrated face, an arm, asecond disk a so of fragile material attached to said arm and having one5 serrated face, a disk of readily compressible material interposedbetween such serrated faces of said two first-named disks, andmeans'adapted to detachably clamp said two first-named disks inengagement.

10 3. In a bracket, the combination of a support, a disk of fragilematerial attached to said support and having one'serrated face, an arm,a second disk also of fragile material attached to said arm and havingone 15 serrated face, a disk of readily compressible WALLACE S. GRAHAM.

Attested by v SUSAN HoLDEnBY, L. B. MARTIN.

